AnalgesicsAnalgesics, OpioidInflammationAnalgesics, Non-NarcoticBiological MarkersBlood SedimentationColitis, UlcerativeInflammation MediatorsNeopterinArthritis, RheumatoidAnalgesiaC-Reactive ProteinAnti-Inflammatory AgentsPainPain MeasurementCrohn DiseaseWhole Body ImagingSeverity of Illness IndexSarcoidosisCalgranulin BLiver CirrhosisMorphineTumor Necrosis Factor-alphaPain, PostoperativeSynovitisCytokinesArthritisProspective StudiesTramadolSynovial FluidTime FactorsArthritis, JuvenileInterleukin-6Case-Control StudiesRadiopharmaceuticalsMacrophagesBiopsyMultimodal ImagingPhenacetinFluorodeoxyglucose F18Enzyme-Linked Immunosorbent AssayHepatitis C, ChronicPositron-Emission TomographyNeutrophilsAtherosclerosisAcetaminophenDisease Models, AnimalTreatment OutcomeInflammatory Bowel DiseasesChronic DiseaseMagnetic Resonance ImagingDisease ProgressionDextropropoxypheneInterleukin-8Tomography, X-Ray ComputedSensitivity and SpecificityAnti-Inflammatory Agents, Non-SteroidalDrug ToleranceImmunoglobulin GPredictive Value of TestsAntirheumatic AgentsReproducibility of ResultsMultiple SclerosisCodeineAnalysis of VarianceLiverPain ThresholdIntestinal MucosaFollow-Up StudiesRisk FactorsLeukocytesImmunohistochemistryMeperidineRNA, MessengerLipopolysaccharidesFentanylReverse Transcriptase Polymerase Chain ReactionInterleukin-10PentazocineMice, Inbred C57BLCells, CulturedPain ManagementReceptors, Opioid, muOxycodoneAnesthetics, LocalDipyroneHyperalgesiaInjections, SpinalBupivacaineAnalgesia, EpiduralNaloxoneStereoisomerismEndothelium, VascularDouble-Blind MethodAnalgesia, Patient-ControlledGene Expression RegulationTropaeolaceaeCarrageenanKetoprofenDose-Response Relationship, Drug